Photoinduced intermolecular electron transfer between Coumarin dyes and electron donating solvents in cetyltrimethylammonium bromide (CTAB) micelles: evidence for Marcus inverted region

被引：53

作者：

Chakraborty, A ^{[1
]}

Chakrabarty, D ^{[1
]}

Hazra, P ^{[1
]}

Seth, D ^{[1
]}

Sarkar, N ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 382卷 / 5-6期

关键词：

D O I：

10.1016/j.cplett.2003.10.105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photoinduced electron transfer between different Coumarin dyes and aromatic amines in cetyltrimethylammonium bromide (CTAB) micellar solution has been reported using both steady state and time resolved fluorescence quenching measurement. The location of the dye molecules in micelles has been confirmed by the time resolved fluorescence anisotropy measurement. The plot of the observed K-q values in the CTAB micellar solution with the free energy change (DeltaGdegrees) for electron transfer reaction show an inversion in the observed rate as predicted by Marcus theory. The two-dimensional electron transfer model has been employed to interpret the Marcus inverted region. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：508 / 517

页数：10

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